diff --git a/mod/assignment/type/online/assignment.class.php b/mod/assignment/type/online/assignment.class.php
index 41cb9c950d3..c2881bcb5ef 100644
--- a/mod/assignment/type/online/assignment.class.php
+++ b/mod/assignment/type/online/assignment.class.php
@@ -270,7 +270,7 @@ class assignment_online extends assignment_base {
     }
 
     function portfolio_exportable() {
-        return true;
+        return false; // not until MDL-22001 is fixed :(
     }
 
     function portfolio_load_data($caller) {